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 Forum index » DIY Hardware and Software » The layout factory
RYO 3x VCA - Stripboard layout help
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BlacKcaT



Joined: Dec 08, 2016
Posts: 25
Location: Italy
Audio files: 1

PostPosted: Wed Jan 24, 2018 5:13 am    Post subject: Reply with quote  Mark this post and the followings unread

hey Nardu, you are a master! I will swap the TL084 with a TL074 without any change. Is this ok?
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Nardu



Joined: Feb 28, 2011
Posts: 62
Location: Braila, Romania

PostPosted: Wed Jan 24, 2018 6:25 am    Post subject: Reply with quote  Mark this post and the followings unread

BlacKcaT wrote:
....I will swap the TL084 with a TL074 without any change. Is this ok?

puts sockets and tests, usually works

Here the v.3: with the original power input schema. Personally I prefer ferrite bead instead of R1, R2
I corrected the missing link v.2: R3 to V-ref


RYO 2x VCA top_v.3_corect.jpg
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RYO 2x VCA top_v.3_corect.jpg



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Last edited by Nardu on Wed Jan 31, 2018 11:26 am; edited 1 time in total
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Nardu



Joined: Feb 28, 2011
Posts: 62
Location: Braila, Romania

PostPosted: Thu Jan 25, 2018 1:17 am    Post subject: RYO 2X VCA_v.3 stripboard Lochmaster Reply with quote  Mark this post and the followings unread

Sorry, I found 2 errors: LM324, TL084 must be rotated 180 degrees (in all variants), a wrong connection to VR7 and VR8.
Here,
- RYO 2x VCA top v.3 revised. The attachment RYO 2X VCA_v.3 stripboard.zip, contains the LM4 file.
- RYO 2x VCA v.3 helper, like silkscreen. Print from ryo 2x vca_v.3 silkscreen helper.pdf file 1:1, crop to edges and stick the corners on top side.
Note!, are some connections on bottom side (in all variants).
Use Viewer for LochMaster for printing


ryo 2x vca_v.3 silkscreen helper.jpg
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RYO 2x VCA v.3 helper, like silkscreen, stripboard, Lochmaster
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ryo 2x vca_v.3 silkscreen helper.jpg



RYO 2x VCA top_v.3_corect1.jpg
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RYO 2x VCA top v.3 revised, stripboard, Lochmaster
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RYO 2x VCA top_v.3_corect1.jpg



ryo 2x vca_v.3 silkscreen helper.pdf
 Description:
RYO 2x VCA v.3 helper, like silkscreen, stripboard, Lochmaster

Download
 Filename:  ryo 2x vca_v.3 silkscreen helper.pdf
 Filesize:  220.18 KB
 Downloaded:  31 Time(s)


RYO 2X VCA_v.3 stripboard.zip
 Description:
RYO 2X VCA v.3 revised, LM4 file, stripboard, Lochmaster

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 Filename:  RYO 2X VCA_v.3 stripboard.zip
 Filesize:  382.77 KB
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Ayab



Joined: Oct 27, 2015
Posts: 96
Location: London, UK

PostPosted: Fri Jan 26, 2018 3:49 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hi Nardu - Greetings and thank you for your generosity sharing these! Laughing
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Nardu



Joined: Feb 28, 2011
Posts: 62
Location: Braila, Romania

PostPosted: Sun Jan 28, 2018 3:31 am    Post subject: RYO 2X VCA_v.3 stripboard Lochmaster, helpers Reply with quote  Mark this post and the followings unread

So you do not miss any spilt points, use this helper. Print from ryo 2x vca_v.3 split points helper.pdf file to 1:1 scale, crop to edges and stick the corners on bottom side.
Note! For any prints for the bottom side you must press the mirror button (vertical)
Use in Lochmaster the Print function (ryo 2x vca_v.3 printing tips.png)


ryo 2x vca_v.3 split points helper.jpg
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Lochmaster 4.0 printing tips & helpers
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ryo 2x vca_v.3 split points helper.jpg



ryo 2x vca_v.3 printing tips.png
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Lochmaster 4.0 printing tips
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ryo 2x vca_v.3 printing tips.png



ryo 2x vca_v.3 split points helper.pdf
 Description:
Lochmaster 4.0 printing tips & helpers

Download
 Filename:  ryo 2x vca_v.3 split points helper.pdf
 Filesize:  72.02 KB
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Ayab



Joined: Oct 27, 2015
Posts: 96
Location: London, UK

PostPosted: Mon Jan 29, 2018 9:24 am    Post subject: Reply with quote  Mark this post and the followings unread

Very helpful thank you

Unfortunately have to change heating element in soldering iron before can do any more circuits! Have replacement hope repair goes well!
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Nardu



Joined: Feb 28, 2011
Posts: 62
Location: Braila, Romania

PostPosted: Sun Feb 04, 2018 2:21 am    Post subject:  RYO 2X VCA_v.4 stripboard Lochmaster; a shorter version Reply with quote  Mark this post and the followings unread

By putting some resistors in a vertical position, we obtained a shorter version of only 100mm x 50mm, corresponding to the usual dimensions of the PCB stripboard


RYO 2x VCA v.4 short.jpg
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RYO 2X VCA_v.4 stripboard Lochmaster; 100mm x 50mm version
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RYO 2x VCA v.4 short.jpg



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BlacKcaT



Joined: Dec 08, 2016
Posts: 25
Location: Italy
Audio files: 1

PostPosted: Sun Feb 04, 2018 4:43 am    Post subject: Reply with quote  Mark this post and the followings unread

This design is going to be more and more interesting! Surprised
I have a question Nardu, why you choose to use two different op-amp in there? I mean, TL082 and LM324? It is possible, in this design, to use 2 identical one (the TL or the LM), without any change?
thank you for your effort!
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Nardu



Joined: Feb 28, 2011
Posts: 62
Location: Braila, Romania

PostPosted: Sun Feb 04, 2018 7:02 am    Post subject:   Reply with quote  Mark this post and the followings unread

Use TL074 both, has lower noise figure.
I like synth on stripboard. Check this - https://www.indiegogo.com/projects/otto-s-diy-eurorack-modules#/


RYO 2x VCA v.4 short.zip
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Lochmaster LM4 file

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 Filename:  RYO 2x VCA v.4 short.zip
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Nardu



Joined: Feb 28, 2011
Posts: 62
Location: Braila, Romania

PostPosted: Mon Feb 05, 2018 12:49 pm    Post subject:  Replace LM324 & TL084 Reply with quote  Mark this post and the followings unread

Analyzing the circuit RYO VCA, LM324 (cheaper) is used for CV, work with DC; is not critical. TL084 works with audio and the noise figure (NF) is important; affects the signal-to-noise ratio (SNR). TL074 has lower noise than TL084.
Now, by looking at the calibration instructions - pages 13 & 14, I deduce that you can use other compatible CIs.

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Nardu



Joined: Feb 28, 2011
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PostPosted: Tue Feb 13, 2018 2:41 pm    Post subject: Reply with quote  Mark this post and the followings unread

Another approach to this project for - an interesting idea on 8HP EuroRack Otto's DIY EuroRack Modules - Facebook Otto's DIY Eurorack User Group
Possible 4xRYO VCA


otto stripboard 1.png
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otto stripboard 1.png



RYO 4x VCA-Otto-Stripboard-480_v1.jpg
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g.gabba



Joined: Nov 29, 2008
Posts: 295
Location: berlin
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PostPosted: Wed Feb 14, 2018 1:51 am    Post subject: Reply with quote  Mark this post and the followings unread

nice one!
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BlacKcaT



Joined: Dec 08, 2016
Posts: 25
Location: Italy
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PostPosted: Thu Feb 15, 2018 11:00 am    Post subject: Reply with quote  Mark this post and the followings unread

Din't expect to see so much effort! You'r a king Nardu! Cool
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Nardu



Joined: Feb 28, 2011
Posts: 62
Location: Braila, Romania

PostPosted: Tue Feb 20, 2018 11:25 pm    Post subject: RYO 2x VCA Otto's Stripboard-480 version Reply with quote  Mark this post and the followings unread

With potential, Otto's Eurorack modules - Stripboard-480 version


RYO 2x VCA Otto Stripboard-480_potential.jpg
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RYO 2x VCA Otto Stripboard-480_potential.jpg



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